Implementing a Class That Can Be Sorted
In order for a class to be used in a sorted collection such as a
SortedTree or for it to be sortable by Collections.sort(),
the class must implement Comparable.
public class MyClass implements Comparable {
public int compareTo(Object o) {
// If this < o, return a negative value
// If this = o, return 0
// If this > o, return a positive value
}
}
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